Pressurizing bone nail

Abstract

The utility model discloses a pressurizing bone setting nail which comprises a bone setting nail body and a bone setting plate, one end of the bone setting nail body is connected to the bone setting plate in a penetrating mode, the other end of the bone setting nail body is fixedly connected with a nail cap, two symmetrical extrusion notches are formed in the outer surface of one end of the nail cap, and the pressurizing bone setting nail further comprises an extrusion block, an extrusion rod and a stand column cylinder. The bone fracture plate has the advantages that the bone fracture nail connected to the nail cap penetrates through the bone fracture plate and is suspended into a bone, then the extrusion rod penetrates through the through hole, the extrusion block is embedded into the nail cap, the extrusion rod is erected on the nail cap through the extrusion notch, meanwhile, the extrusion rod is connected to one end of the connecting rod in a sleeved mode through the limiting notch, and the connecting rod is connected to the other end of the connecting rod in a sleeved mode. And then a connecting block can be driven to ascend and descend by rotating a connecting rod, so that the connecting rod is matched with a stand column barrel to adjust ascending and descending of an extrusion rod, the extrusion rod drives an extrusion block to be pressurized on a nail cap, and the bone setting nail has better firmness during bone setting.

Description

TECHNICAL FIELD

[0001] The utility model relates to orthopedic medical instrument technical field especially relates to a kind of compression bone nail. BACKGROUND

[0002] Tibial distal end three-plane fracture is common in teenagers, that is, tibial distal end has fracture on horizontal plane, coronal plane and sagittal plane. Because fracture end is unstable, it involves ankle joint, and if treatment is improper, fracture malunion, skin flap necrosis, traumatic arthritis of ankle joint, joint stiffness and other complications will occur, which seriously affect the walking function of patient's lower limbs, and even leave lower limb dysfunction. Since the fracture line passes through the full layer of growth plate, there is a risk of epiphyseal closure and fracture malunion, and the risk of traumatic arthritis of ankle joint and joint stiffness is high, which leads to ankle joint dysfunction in varying degrees. Surgery is the best treatment method, and the fracture end is reduced to within 2mm as much as possible.

[0003] However, the existing bone nail has certain drawbacks in use. The existing bone nail is single-threaded and is screwed onto the bone. The single-threaded connection is prone to loosening during tightening, which affects the effect of bone fixation and reinforcement. Therefore, there is an urgent need for a compression bone nail to solve the above problems. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model provides a kind of compression bone nail, and the utility model is realized by the following technical scheme.

[0005] A kind of compression bone nail, including bone nail and bone plate, and bone nail one end is connected in bone plate, the other end of the bone nail is fixedly connected with nail cap, the outer surface of the one end of the nail cap is provided with the symmetric two extrusion slot, further including:

[0006] Extrusion block, the one end of the extrusion block is provided with through hole;

[0007] Extrusion rod, the two ends of the extrusion rod are provided with limit slot;

[0008] Stand column cylinder, the one end of the stand column cylinder is fixedly connected in bone plate, and the inside of stand column cylinder is movably connected with connecting block, and the top of connecting block is fixedly connected with connecting rod.

[0009] Further, the outer surface of the nail cap is provided with hexagonal slot.

[0010] Further, the one end of the extrusion block is embeddedly connected in the inside of the nail cap.

[0011] Further, the extrusion rod is connected in the through hole, and the extrusion rod is connected with the nail cap through the extrusion slot, and the extrusion rod is extruded on the nail cap.

[0012] Further, the connecting rod is penetrated and matched with the extruding rod through the limiting slot.

[0013] Further, the connecting block is threadedly matched with the stand cylinder.

[0014] The device has the advantages that in the working process, the bone plate is first attached to the fixed position, then the bone nail connected to the nail cap is penetrated through the bone plate and suspended into the bone, then the extruding rod is penetrated through the penetrating hole, then the extruding block is embedded into the nail cap, and the extruding rod is erected on the nail cap through the extruding slot, meanwhile, the extruding rod is sleeved on the one end of the connecting rod through the limiting slot, then the connecting block is lifted by rotating the connecting rod, so that the connecting rod cooperates with the stand cylinder to adjust and lift the extruding rod, the extruding block driven by the extruding rod can be pressed on the nail cap, and the bone nail has better firmness when being used to connect bones. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed in the specific implementation manner. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0016] Figure 1 The utility model discloses a kind of structure schematic diagram of pressurized bone nail.

[0017] Figure 2 The utility model discloses the connecting structure schematic diagram of bone nail and nail cap.

[0018] Figure 3 The utility model discloses the connecting structure schematic diagram of extruding block and extruding rod.

[0019] Figure 4 The utility model discloses the connecting schematic diagram of extruding rod and bone plate.

[0020] The following are the symbols of drawings:

[0021] 1, bone nail.

[0022] 2, nail cap; 21, extruding slot.

[0023] 3, extruding block; 31, penetrating hole.

[0024] 4, extruding rod; 41, limiting slot.

[0025] 5, stand cylinder; 51, connecting block; 52, connecting rod.

[0026] 6, bone plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0028] As shown in the figure, Figures 1-4 The utility model has the following specific embodiments.

[0029] Embodiment:

[0030] A compression bone nail, including bone nail 1 and bone plate 6, and bone nail 1 one end is connected on bone plate 6, and the other end of bone nail 1 is fixedly connected with nail cap 2, and the outer surface of one end of nail cap 2 is provided with two symmetrical extrusion notches 21, further comprising:

[0031] Extrusion block 3, one end of extrusion block 3 is provided with through hole 31;

[0032] Extrusion rod 4, the both ends of extrusion rod 4 are provided with limit slot 41;

[0033] Stand column cylinder 5, one end of stand column cylinder 5 is fixedly connected on bone plate 6, and the inside of stand column cylinder 5 is movably connected with connecting block 51, and the top of connecting block 51 is fixedly connected with connecting rod 52.

[0034] Specifically, the outer surface of nail cap 2 is provided with hexagonal notch, and the hexagonal notch provided on nail cap 2 is convenient for adjusting nail cap 2 to rotate.

[0035] Specifically, one end of extrusion block 3 is embeddedly connected in the inside of nail cap 2, and nail cap 2 can be extruded on bone plate 6 to be fixed.

[0036] Specifically, extrusion rod 4 is connected in through hole 31, extrusion rod 4 is connected with nail cap 2 through extrusion notch 21, and extrusion rod 4 is extruded on nail cap 2, and extrusion rod 4 can pull and press extrusion block 3 by passing through through hole 31.

[0037] Specifically, connecting rod 52 is connected with extrusion rod 4 through limit slot 41, and lifting connecting rod 52 can pull and press extrusion rod 4.

[0038] Specifically, connecting block 51 is screw-threadedly connected with stand column cylinder 5, and screw-threadedly connecting connecting block 51 and stand column cylinder 5 can be adjusted in height.

[0039] The working principle of the utility model:

[0040] In use, the bone plate 6 is first attached to a fixed position, the bone nail 1 connected to the nail cap 2 is then passed through the bone plate 6 and suspended into the bone, the extrusion rod 4 is then passed through the through hole 31, the extrusion block 3 is then inserted into the nail cap 2, the extrusion rod 4 is supported on the nail cap 2 through the extrusion groove 21, the extrusion rod 4 is sleeved on one end of the connecting rod 52 through the limiting groove 41, the connecting block 51 is driven to move up and down by rotating the connecting rod 52, the connecting rod 52 cooperates with the stand cylinder 5 to adjust and move up and down the extrusion rod 4, the extrusion rod 4 drives the extrusion block 3 to press on the nail cap 2, and the bone nail 1 is better fixed when used to fix the bone.

[0041] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and do not limit the present application to the specific embodiments. Obviously, many modifications and variations can be made according to the content of the present application. The present application is selected and described in detail to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and use the present application. The present application is limited by the claims and their full scope and equivalents.

Claims

1. A compression hip screw comprising a hip screw (1) and a bone plate (6), and the hip screw (1) is connected to the bone plate (6) at one end, characterized in that: Another end of the bone nail (1) is fixedly connected with a nail cap (2), an outer surface of one end of the nail cap (2) is provided with two symmetrical extrusion notches (21), further comprising: An extrusion block (3) is provided with a through hole (31) at one end thereof; An extrusion rod (4) is provided with a limiting notch (41) at both ends thereof; A stand cylinder (5) is fixedly connected at one end thereof to a bone plate (6), and the inside of the stand cylinder (5) is movably connected with a connecting block (51), and the top of the connecting block (51) is fixedly connected with a connecting rod (52).

2. A compression hip screw according to claim 1 wherein: An outer surface of the nail cap (2) is provided with a hexagonal notch.

3. The compression hip screw of claim 1 wherein: One end of the extrusion block (3) is embeddedly connected inside the nail cap (2).

4. The compression hip screw of claim 1 wherein: The extrusion rod (4) is penetratingly connected in the through hole (31), and the extrusion rod (4) is penetratingly connected with the nail cap (2) through the extrusion notch (21), and the extrusion rod (4) is extruded on the nail cap (2).

5. The compression hip screw of claim 1 wherein: The connecting rod (52) is penetratingly matched with the extrusion rod (4) through the limiting notch (41).

6. The compression hip screw of claim 1, wherein: The connecting block (51) is screw-threadedly matched with the stand cylinder (5).

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